Desk lamp



FIG. 1 is a front view of a desk lamp showing my new design;

FIG. 2 is a rear view of the desk lamp;

FIG. 3 is a right side view of the desk lamp;

FIG. 4 is a left side view of the desk lamp;

FIG. 5 is a top view of the desk lamp;

FIG. 6 is a bottom view of the desk lamp; and,

FIG. 7 is a top front side perspective view of the desk lamp. 

CLAIM The ornamental design for a desk lamp, as shown and described. 